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[3.13] gh-152359: Update numbers.rst to reference numeric-hash docs (GH-152549) #152581

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picnixz merged 1 commit into from
Jun 29, 2026
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[3.13] gh-152359: Update numbers.rst to reference numeric-hash docs (GH-152549) #152581

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15 changes: 1 addition & 14 deletions Doc/library/numbers.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -90,20 +90,7 @@ Notes for type implementers

Implementers should be careful to make equal numbers equal and hash
them to the same values. This may be subtle if there are two different
extensions of the real numbers. For example, :class:`fractions.Fraction`
implements :func:`hash` as follows::

def __hash__(self):
if self.denominator == 1:
# Get integers right.
return hash(self.numerator)
# Expensive check, but definitely correct.
if self == float(self):
return hash(float(self))
else:
# Use tuple's hash to avoid a high collision rate on
# simple fractions.
return hash((self.numerator, self.denominator))
extensions of the real numbers. See also :ref:`numeric-hash`.


Adding More Numeric ABCs
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